Exceptional points on surfaces in four-spaces (Q1062025)
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scientific article; zbMATH DE number 3911221
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Exceptional points on surfaces in four-spaces |
scientific article; zbMATH DE number 3911221 |
Statements
Exceptional points on surfaces in four-spaces (English)
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1985
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The points in question generalize umbilic and minimal points of an immersion of a closed oriented surface in \({\mathbb{R}}^ 4\) (or into a self- dual 4-dimensional Riemannian manifold). In these contexts index formulas are derived.
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twistor degree
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self-dual four-dimensional Riemannian manifold
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twistor- holomorphic points
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index formulas
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0.89346194
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0.8815025
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0.8814333
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0.87939155
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